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    <title>Document</title>
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    <ul>
        <li id="wukong" class="monkey">悟空</li>
        <li id="bajie" class="monkey">八戒</li>
        <li id="tangseng">唐僧</li>
        <li id="shaseng">沙僧</li>
    </ul>
    <ul>
        <li>黑猫警长</li>
        <li>葫芦娃</li>
        <li>小金刚</li>
    </ul>
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